crypto: talitos - prepare driver for channel remap support
Add a reg member to the channel struct and use it to
access channels.
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index c372a18..7f82e91 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -99,6 +99,8 @@
/* per-channel fifo management */
struct talitos_channel {
+ void __iomem *reg;
+
/* request fifo */
struct talitos_request *fifo;
@@ -197,9 +199,9 @@
struct talitos_private *priv = dev_get_drvdata(dev);
unsigned int timeout = TALITOS_TIMEOUT;
- setbits32(priv->reg + TALITOS_CCCR(ch), TALITOS_CCCR_RESET);
+ setbits32(priv->chan[ch].reg + TALITOS_CCCR, TALITOS_CCCR_RESET);
- while ((in_be32(priv->reg + TALITOS_CCCR(ch)) & TALITOS_CCCR_RESET)
+ while ((in_be32(priv->chan[ch].reg + TALITOS_CCCR) & TALITOS_CCCR_RESET)
&& --timeout)
cpu_relax();
@@ -209,12 +211,12 @@
}
/* set 36-bit addressing, done writeback enable and done IRQ enable */
- setbits32(priv->reg + TALITOS_CCCR_LO(ch), TALITOS_CCCR_LO_EAE |
+ setbits32(priv->chan[ch].reg + TALITOS_CCCR_LO, TALITOS_CCCR_LO_EAE |
TALITOS_CCCR_LO_CDWE | TALITOS_CCCR_LO_CDIE);
/* and ICCR writeback, if available */
if (priv->features & TALITOS_FTR_HW_AUTH_CHECK)
- setbits32(priv->reg + TALITOS_CCCR_LO(ch),
+ setbits32(priv->chan[ch].reg + TALITOS_CCCR_LO,
TALITOS_CCCR_LO_IWSE);
return 0;
@@ -328,8 +330,9 @@
/* GO! */
wmb();
- out_be32(priv->reg + TALITOS_FF(ch), upper_32_bits(request->dma_desc));
- out_be32(priv->reg + TALITOS_FF_LO(ch),
+ out_be32(priv->chan[ch].reg + TALITOS_FF,
+ upper_32_bits(request->dma_desc));
+ out_be32(priv->chan[ch].reg + TALITOS_FF_LO,
lower_32_bits(request->dma_desc));
spin_unlock_irqrestore(&priv->chan[ch].head_lock, flags);
@@ -423,7 +426,7 @@
int tail = priv->chan[ch].tail;
dma_addr_t cur_desc;
- cur_desc = in_be32(priv->reg + TALITOS_CDPR_LO(ch));
+ cur_desc = in_be32(priv->chan[ch].reg + TALITOS_CDPR_LO);
while (priv->chan[ch].fifo[tail].dma_desc != cur_desc) {
tail = (tail + 1) & (priv->fifo_len - 1);
@@ -445,7 +448,7 @@
int i;
if (!desc_hdr)
- desc_hdr = in_be32(priv->reg + TALITOS_DESCBUF(ch));
+ desc_hdr = in_be32(priv->chan[ch].reg + TALITOS_DESCBUF);
switch (desc_hdr & DESC_HDR_SEL0_MASK) {
case DESC_HDR_SEL0_AFEU:
@@ -507,8 +510,8 @@
for (i = 0; i < 8; i++)
dev_err(dev, "DESCBUF 0x%08x_%08x\n",
- in_be32(priv->reg + TALITOS_DESCBUF(ch) + 8*i),
- in_be32(priv->reg + TALITOS_DESCBUF_LO(ch) + 8*i));
+ in_be32(priv->chan[ch].reg + TALITOS_DESCBUF + 8*i),
+ in_be32(priv->chan[ch].reg + TALITOS_DESCBUF_LO + 8*i));
}
/*
@@ -529,8 +532,8 @@
error = -EINVAL;
- v = in_be32(priv->reg + TALITOS_CCPSR(ch));
- v_lo = in_be32(priv->reg + TALITOS_CCPSR_LO(ch));
+ v = in_be32(priv->chan[ch].reg + TALITOS_CCPSR);
+ v_lo = in_be32(priv->chan[ch].reg + TALITOS_CCPSR_LO);
if (v_lo & TALITOS_CCPSR_LO_DOF) {
dev_err(dev, "double fetch fifo overflow error\n");
@@ -568,10 +571,10 @@
if (reset_ch) {
reset_channel(dev, ch);
} else {
- setbits32(priv->reg + TALITOS_CCCR(ch),
+ setbits32(priv->chan[ch].reg + TALITOS_CCCR,
TALITOS_CCCR_CONT);
- setbits32(priv->reg + TALITOS_CCCR_LO(ch), 0);
- while ((in_be32(priv->reg + TALITOS_CCCR(ch)) &
+ setbits32(priv->chan[ch].reg + TALITOS_CCCR_LO, 0);
+ while ((in_be32(priv->chan[ch].reg + TALITOS_CCCR) &
TALITOS_CCCR_CONT) && --timeout)
cpu_relax();
if (timeout == 0) {
@@ -2710,6 +2713,10 @@
goto err_out;
}
+ for (i = 0; i < priv->num_channels; i++)
+ priv->chan[i].reg = priv->reg + TALITOS_CH_BASE_OFFSET +
+ TALITOS_CH_STRIDE * (i + 1);
+
for (i = 0; i < priv->num_channels; i++) {
spin_lock_init(&priv->chan[i].head_lock);
spin_lock_init(&priv->chan[i].tail_lock);
diff --git a/drivers/crypto/talitos.h b/drivers/crypto/talitos.h
index 0b746ac..3ed319d 100644
--- a/drivers/crypto/talitos.h
+++ b/drivers/crypto/talitos.h
@@ -1,7 +1,7 @@
/*
* Freescale SEC (talitos) device register and descriptor header defines
*
- * Copyright (c) 2006-2010 Freescale Semiconductor, Inc.
+ * Copyright (c) 2006-2011 Freescale Semiconductor, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -49,13 +49,14 @@
#define TALITOS_ICR_LO 0x101C
/* channel register address stride */
+#define TALITOS_CH_BASE_OFFSET 0x1000 /* default channel map base */
#define TALITOS_CH_STRIDE 0x100
/* channel configuration register */
-#define TALITOS_CCCR(ch) (ch * TALITOS_CH_STRIDE + 0x1108)
+#define TALITOS_CCCR 0x8
#define TALITOS_CCCR_CONT 0x2 /* channel continue */
#define TALITOS_CCCR_RESET 0x1 /* channel reset */
-#define TALITOS_CCCR_LO(ch) (ch * TALITOS_CH_STRIDE + 0x110c)
+#define TALITOS_CCCR_LO 0xc
#define TALITOS_CCCR_LO_IWSE 0x80 /* chan. ICCR writeback enab. */
#define TALITOS_CCCR_LO_EAE 0x20 /* extended address enable */
#define TALITOS_CCCR_LO_CDWE 0x10 /* chan. done writeback enab. */
@@ -63,8 +64,8 @@
#define TALITOS_CCCR_LO_CDIE 0x2 /* channel done IRQ enable */
/* CCPSR: channel pointer status register */
-#define TALITOS_CCPSR(ch) (ch * TALITOS_CH_STRIDE + 0x1110)
-#define TALITOS_CCPSR_LO(ch) (ch * TALITOS_CH_STRIDE + 0x1114)
+#define TALITOS_CCPSR 0x10
+#define TALITOS_CCPSR_LO 0x14
#define TALITOS_CCPSR_LO_DOF 0x8000 /* double FF write oflow error */
#define TALITOS_CCPSR_LO_SOF 0x4000 /* single FF write oflow error */
#define TALITOS_CCPSR_LO_MDTE 0x2000 /* master data transfer error */
@@ -79,24 +80,24 @@
#define TALITOS_CCPSR_LO_SRL 0x0010 /* scatter return/length error */
/* channel fetch fifo register */
-#define TALITOS_FF(ch) (ch * TALITOS_CH_STRIDE + 0x1148)
-#define TALITOS_FF_LO(ch) (ch * TALITOS_CH_STRIDE + 0x114c)
+#define TALITOS_FF 0x48
+#define TALITOS_FF_LO 0x4c
/* current descriptor pointer register */
-#define TALITOS_CDPR(ch) (ch * TALITOS_CH_STRIDE + 0x1140)
-#define TALITOS_CDPR_LO(ch) (ch * TALITOS_CH_STRIDE + 0x1144)
+#define TALITOS_CDPR 0x40
+#define TALITOS_CDPR_LO 0x44
/* descriptor buffer register */
-#define TALITOS_DESCBUF(ch) (ch * TALITOS_CH_STRIDE + 0x1180)
-#define TALITOS_DESCBUF_LO(ch) (ch * TALITOS_CH_STRIDE + 0x1184)
+#define TALITOS_DESCBUF 0x80
+#define TALITOS_DESCBUF_LO 0x84
/* gather link table */
-#define TALITOS_GATHER(ch) (ch * TALITOS_CH_STRIDE + 0x11c0)
-#define TALITOS_GATHER_LO(ch) (ch * TALITOS_CH_STRIDE + 0x11c4)
+#define TALITOS_GATHER 0xc0
+#define TALITOS_GATHER_LO 0xc4
/* scatter link table */
-#define TALITOS_SCATTER(ch) (ch * TALITOS_CH_STRIDE + 0x11e0)
-#define TALITOS_SCATTER_LO(ch) (ch * TALITOS_CH_STRIDE + 0x11e4)
+#define TALITOS_SCATTER 0xe0
+#define TALITOS_SCATTER_LO 0xe4
/* execution unit interrupt status registers */
#define TALITOS_DEUISR 0x2030 /* DES unit */
